Water bath shaker



FIG. 1 is a front elevational view of a water bath shaker showing ournew design;

FIG. 2 is a top plan view thereof;

FIG. 3 is a side elevational thereof, the other side being identical;

FIG. 4 is a rear elevational thereof;

FIG. 5 is a bottom plan view thereof; and

FIG. 6 is a perspective view thereof.

The ornamental design for a water bath shaker, as shown and described.